Mine 1,728 Cobblestone and place it in a chest.

Stop starvation using Rotten Flesh.

Acquire 30 Emeralds by trading with villagers or mining.

Use a saddle to ride a pig, then have the pig get hurt from fall damage while riding it.

Destroy a Ghast with a fireball.

Kill a creeper with arrows.

Gain the trust of an Ocelot.

Swim in lava while having the Fire Resistance effect.

Throw diamonds at another player.

Construct an Enchantment Table.

Craft and place a Flower Pot.

Wear a full suit of Iron armour.

Attack and destroy a monster.